1224297408 has 56 divisors (see below), whose sum is σ = 3351001680. Its totient is φ = 394024960.

The previous prime is 1224297397. The next prime is 1224297409. The reversal of 1224297408 is 8047924221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224297409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104373 + ... + 115508.

Almost surely, 2^1224297408 is an apocalyptic number.

It is an amenable number.

1224297408 is an abundant number, since it is smaller than the sum of its proper divisors (2126704272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1224297408 is a wasteful number, since it uses less digits than its factorization.

1224297408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219925 (or 219915 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 1224297408 is about 34989.9615318451. The cubic root of 1224297408 is about 1069.7828796363.

The spelling of 1224297408 in words is "one billion, two hundred twenty-four million, two hundred ninety-seven thousand, four hundred eight".